Oil-burner



2 Sheets-Sheet l.

(No Model.)

E. A. GREBNLBAF.

OIL BURNER.

` Pnatmented Mar. 15,1898.`

'PM/ENTER; 4M.

.. l. )er

WITNEEEEE (N10 Model.) 2 Sheets-Sheet 2. E. A. GREENLEAF.

OIL BURNER.

No. 600,612. Patented Mar. 15,1898.

IVVTNESSES Y IPA/ENTER lkw/Mm 6.19M-

NNrTEio STATES PATENT OFFICE.

ELGIN A. GREENLEAF, OF BANGOR, MAINE.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 600,612, dated March 15, 1898.

Application mea April 2,1897. saranno. 630,371. (Nomadi-.1.)

To a/ZZ whom it may concern:

Be it known that I, ELGIN A. GEEENLEAE, a citizen of the United States, residing at Bangor, in the county of Penobscot and State of Maine, have invented a new and useful Improvement in Oil-Burners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

My invention relates to an improvement on the oil-burner invented by Emile R. Weston, for which Letters Patent of the United States No. 576,641, dated February 9, 1897, have been issued; and it consists in an improved construction whereby a greater number of jets of air are provided, and also provides a construction which insures the feeding of air to the flame in equal volume throughout its entire length, thus securing perfect combustion at all portions of the wick and overcoming the difficulty arising from the sloping or rounding off of the dome and foraminous airfeeding walls, which construction results in imperfect combustion, particularly at the sides of the wick. The result of this is that the heat of the flame is thereby increased, enabling the lower grade of oils to be used, as has been described in the aforesaid application.

My invention may be used in connection with a lamp or with a lamp-stove, and I have shown it in connection with the latter, though I do not wish to restrict my invention to this alone.

In the drawings, Figure l is a view in elevation, partly in section, showing my invention as applied to a lamp-stove. Fig. 2 is a transverse section on the line 2 2 of Fig. l. Fig. 3 is a vertical section on line 3 3 of Fig. 3. Fig. 4L illustrates a slight modification showing the wick-tube as having stationary plates upon which the perforated plates close. Fig. 5 is a view showing the dome and perforated plates as turned to a vhorizontal posi-A tion to expose and uncover the wick-tube.

A is a vessel or reservoir of any suitable shape for containing oil. From the top thereof extends the wick-tube B, which is ot' any desired shape.

C is the base of my improved burner, which is secured to the reservoir by the screw c,

which passes through the depending arm c. Thelbase is also provided with the legs c2, one on either. end of the burner, the space between the depending arm and the legs being open to allow the entrance of the air, as is usual in devices of this class. There is also provided the-short depending arm c3, which is adapted to engage with the latch d, attached to the dome D.

The dome D is provided with the Iiange d and is adapted to be tipped upward in the ordinary manner in order to light the lamp or clean the wick. The dome is not made in the usual shape, with the rounded ends, `as in the patent already referred to, but is made in the form shown in Figs. l and. 2, extending straight across the burner from side to side and thus providing a greater space, for a reason to be presently explained. v

Attached to the dome are the perforated walls E, which are provided with the relatively large perforations e, the function of which has been already described in the said Patent No. 576,641, but may be here again shortly referred to. The object of these perforations is to force the air coming from underneath the burner through the iame of the lamp in jets and thereby increase the heat of the'iame and perfecting the combustion of the oil. v

It is important in a lamp of this construction that the number of holes and corresponding jets of air be as large as possible, and I have been enabled to increase the number of holes by forming the dome in the way above described. The perforated Walls E are also continued straight across the burner from side to side, and thus provision is made for many more perforations than were possible before.

It will be apparent that the above construction permits the air passing through` the perforated walls E to reach the flame at all points in equal volume and all danger of imperfect Ycombustion at the extreme sides or corners of the ame is overcome. T he result is that the iiame is broad and of equal intensity the full width of the wick, instead of being low at the corners and weak in action. The charring of the corners of the wick, due to imperfect combustion, is also overcome.

It will be noticed that I dispense entirely IOO with the horizontal perforated draft-plate usually provided at the base of the dome of the burner to insure steadiness of the flame, as by the peculiar structure and relation of the perforated Walls E to the Wick-tube B and dome the desired steadiness is attained Without the intervention of said horizontal plate and the air flows up into the open bottom of the dome D and is projected through the foraminous Walls E to the flame Without hindrance, experiments having shown that this is a superior construction and productive of .better results. There may be provided at the base of these perforated Walls the stationary cover-plates F, if desired, (see Figs. 4 and 5,) and When used they preferably are attached to the Wick-tube. The perforated Walls are attached to the doine and carried with it when it is tipped back, thus providing a ready access to the Wick.

The relation of the Wick-tube, perforated plates, and dome to each other When the dome is closed over the Wick-tube is similar to that described in said patent. The perforated plates are attached to the dome instead of to the wick-tube or to a stationary base-plate, as described in said patent.

The lower cover-plate F may or may not be used, and When not used there is an opening into the space between the wick-tube and the plates through Which air is drawn, and this air unites With the jets which are forced or drawn into the llame.

Having thus fully described my invention,

I claim and desire to secure by Letters Patent of the United Statesl. In an oil-burner, the combination With a suitable fount or reservoir, of a Wick-tube rising from said fount, an open-bottomed dome rising above said Wick-tube and extending the entire length of the burner at the same height above the latter, and perforated Walls depending` from the mouth of said dome so as to inclose said Wick-tube and supply an equal volume of air to all portions of the llame and insure perfect combustion throughout the entire length of the burner.

2. In an oil-burner, the combination With the fount or reservoir A, of the Wick-tube B rising from said fount or reservoir, the dome D having an open bottom hinged to the fount A, said dome extending the entire length of the Wick-tube B at the same height above the latter, the perforated plates or Walls E depending from the top of dome D and surrounding said Wick-tube so that air is fed through the open bottom of the dome to the flame of the burner and is forced against the liame in equal volume throughout its entire length, and cover-plates F carried by the Wick-tube against which the lower ends of the perforated plates E rest and by Which they are closed when the dome D is in closed position.

ELGIN A. GREENLEA F.

In presence of- JOHN R. MASON, WILFRED E. MANsUR. 

